91 B&O sound: scraping noises from woofer door speaker with bass-heavy songs
91 17 62 2046489/2 November 16, 2017. Supersedes Technical Service Bulletin Group 91 number 17-06 dated
February 6, 2017 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

TT

2016 - 2018

All

With B&O

000000 - 900608
TT

Or

2018

With B&O

000000 - 001825

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised header data (Added model years and VIN breaks)
Revised Technical Background (Updated information)
Revised Production Solution (Updated improvement date)
Revised Service (Updated repair instructions)
Revised Warranty (Updated Labor Operations)

1

02/06/2017

Initial publication

The subwoofer speakers in the front doors make scraping noises with bass-heavy songs or spoken passages.
Vehicles with the B&O sound system (PR code 9VS) are affected.

Technical Background
The speaker can have a hardware restriction which causes a noise similar to a blown speaker. Additionally a
software improvement is available for the sound amplifier for this condition.

Production Solution
Hardware improvement introduced into series production start CW46/16 and new software as of CW26/17.

Page 1 of 4
© 2017 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Service
1. Check whether the concern is caused by the speaker or by adjacent components (door trim, plastic parts,
cables, and etc.).
2. Follow TSB 2018187: 91 Sound system: speaker rattles, vibrations or audio interference and ensure there
are no outside influences that can be removed to fix the concern.
3. If no outside influence can be determined, then remove the speaker from its mounting location using the
repair instructions in ElsaPro at Repair Manual, Electrical System >> Communication >> 91 Communication
>> Sound System >> Left Front Bass Speaker -R21-/Right Front Bass Speaker -R23-, Removing and
Installing >> Left Front Bass Speaker -R21-/Right Front Bass Speaker -R23-, Removing and Installing,
9VD/9VS.
 Keep the speaker wiring connected and play audio through the MMI while the speaker is removed from its
mounting location and while being held.
 Verify the noise is heard when holding the speaker in hand.
 If it is determined the speaker is the source of the noise, with no outside influence, then use SVM to
update the parameter data of the digital sound system control module, J525 (address word 0047 – Sound
system (Bang & Olufsen)). The parameter part number and version can only be seen after the SVM
update completes. To access SVM, within ODIS start GFF >> Diagnosis >> Special functions >>
Software Version Management >> SVM code input.

Model

2016-2018 TT

Old Parameter P/N Old Parameter New Parameter P/N
Version

8S0909510C

All

8S0909510C

New
Parameter
Version

SVM Code

0013

47A005

4. If the noise is still present, and no outside influence can be found, then replace the speaker.

Page 2 of 4
© 2017 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

Warranty
Claim Type:

 110 up to 48 Months/50,000 Miles.
 G10 for CPO Covered Vehicles – Verify Owner.
 If vehicle is outside any warranty, this Technical Service Bulletin is informational only.

Service Number:

9140

Damage Code:

0040

Labor
Operations:

Removing and Checking both door woofer speakers
Front door trim panels removed + reinstalled

7059 2000

50 TU

Front loudspeakers remove + reinstall

9140 2052

50 TU

OR
Removing and Checking as single door woofer speaker
Front door trim panel removed + reinstalled

7059 1900

30 TU

Front loudspeaker remove + reinstall

9140 1952

30 TU

OR
Checking and Replacing both door woofer speakers
Front door trim panels removed + reinstalled

7059 2000

50 TU

Front loudspeakers remove + reinstall

9140 2052

50 TU

Front loudspeakers replace

9140 9999

20 TU

OR
Checking and Replacing only a single door woofer speaker
Front door trim panel removed + reinstalled

7059 1900

30 TU

Front loudspeaker remove + reinstall

9140 1952

30 TU

Front loudspeaker replace

9140 9999

10 TU

0150 0000

Time stated on
diagnostic

Diagnostic Time: GFF

Page 3 of 4
© 2017 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.

protocol (Max 100
TU)

Claim Comment:

Road test prior to service procedure

No allowance

10 TU

Road test after service procedure

No allowance

10 TU

As per TSB #2046489/2

All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.

Required Parts and Tools
Part Number Part Description

Quantity

8S0.035.297

Driver Door “Woofer”

As needed

8S0.035.298

Passenger Door “Woofer”

As needed

Additional Information
The following Technical Service Bulletin(s) will be necessary to complete this procedure:
 TSB 2018187, 91 Sound system: speaker rattles, vibrations or audio interference.
All parts and service references provided in this TSB (2046489) are subject to change and/or removal. Always
check with your Parts Department and service manuals for the latest information.
©2017 Audi of America, Inc. All rights reserved. Information contained in this document is based on the latest
information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any
time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these
materials be modified or reposted to other sites without the prior expressed written permission of the publisher.

Page 4 of 4
© 2017 Audi of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other intellectual property rights of Audi of
America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted
in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the
publisher.